National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Excessive Rainfall and Tropical Storm in the South; Severe Thunderstorms in the Midwest

Excessive rainfall may produce considerable, potentially life-threatening, flooding across the lower Mississippi River Valley and central Great Lakes region through tonight. Tropical Storm Arthur will move northeastward along the Texas coast today and then move inland over southwestern Louisiana by tonight. An outbreak of severe thunderstorms is expected across portions of Illinois and Indiana. Read More >

Hazardous Weather Conditions

Current conditions at

Granby-Grand County Airport (KGNB)

Lat: 40.09°NLon: 105.92°WElev: 8207ft.

Fair and Breezy

84°F

29°C

Humidity 10%
Wind Speed W 25 G 33 mph
Barometer 30.04 in
Dewpoint 23°F (-5°C)
Visibility 10.00 mi
Heat Index81°F (27°C)
Last update 17 Jun 3:35 pm MDT
Extended Forecast for

6 Miles WSW Deer Ridge CO

Red Flag Warning until June 17, 08:00pm
Click here for hazard details and duration
Red Flag Warning
  •  
    Red Flag Warning until June 17, 08:00pm

    NOW until 8:00pm Wed

    Red Flag Warning

  • This Afternoon

    High: 73 °F

    Sunny and
    Windy

  • Tonight

    Tonight: Mostly clear, with a low around 41. Windy, with a west southwest wind 18 to 28 mph decreasing to 5 to 15 mph. Winds could gust as high as 41 mph.

    Low: 41 °F

    Mostly Clear
    and Windy
    then Clear

  • Thursday

    Thursday: Sunny, with a high near 73. Breezy, with a west wind 6 to 11 mph increasing to 12 to 17 mph in the afternoon. Winds could gust as high as 28 mph.

    High: 73 °F

    Sunny and
    Breezy

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 46. West wind 5 to 13 mph, with gusts as high as 24 mph.

    Low: 46 °F

    Partly Cloudy

  • Juneteenth

    Juneteenth: Mostly sunny, with a high near 73. West wind 6 to 9 mph becoming northeast in the afternoon. Winds could gust as high as 21 mph.

    High: 73 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 48.

    Low: 48 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 73. Windy.

    High: 73 °F

    Sunny and
    Windy

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 45. Windy.

    Low: 45 °F

    Mostly Clear
    and Windy
    then Mostly
    Clear

Detailed Forecast

This Afternoon
Sunny, with a high near 73. Windy, with a west wind around 29 mph, with gusts as high as 44 mph.
Tonight
Mostly clear, with a low around 41. Windy, with a west southwest wind 18 to 28 mph decreasing to 5 to 15 mph. Winds could gust as high as 41 mph.
Thursday
Sunny, with a high near 73. Breezy, with a west wind 6 to 11 mph increasing to 12 to 17 mph in the afternoon. Winds could gust as high as 28 mph.
Thursday Night
Partly cloudy, with a low around 46. West wind 5 to 13 mph, with gusts as high as 24 mph.
Juneteenth
Mostly sunny, with a high near 73. West wind 6 to 9 mph becoming northeast in the afternoon. Winds could gust as high as 21 mph.
Friday Night
Partly cloudy, with a low around 48.
Saturday
Sunny, with a high near 73. Windy.
Saturday Night
Mostly clear, with a low around 45. Windy.
Sunday
A slight chance of showers and thunderstorms after noon. Sunny, with a high near 68. Breezy.
Sunday Night
A chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 43.
Monday
Showers and thunderstorms likely. Mostly sunny, with a high near 68.
Monday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 44.
Tuesday
A slight chance of showers and thunderstorms. Sunny, with a high near 71.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
6 Miles WSW Deer Ridge CO
 40.35°N 105.69°W (Elev. 9600 ft)
Last Update:
12:46 pm MDT Jun 17, 2026
Forecast Valid:
3pm MDT Jun 17, 2026-6pm MDT Jun 23, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation